List of external influences: Difference between revisions
From Electrical Installation Guide
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{{FigureRef|E60}} below is from '''IEC 60364-5-51''', which should be referred to if further details are required. | |||
{| class="wikitable | {| class="wikitable" | ||
|- | |- | ||
! colspan="2" | Code | ! colspan="2" | Code | ||
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| {{Table_HC2}} colspan="4" | '''Ambient temperature (°C)''' | | {{Table_HC2}} colspan="4" | '''Ambient temperature (°C)''' | ||
|- | |- | ||
| | | | ||
| Low | | Low | ||
| width="10%" | High | | width="10%" | High | ||
| | | | ||
| rowspan="4" | Specially designed equipment or appropriate arrangements | | rowspan="4" | Specially designed equipment or appropriate arrangements | ||
|- | |- | ||
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| + 5 °C | | + 5 °C | ||
| + 40 °C | | + 40 °C | ||
| | | | ||
| Normal | | Normal | ||
|- | |- | ||
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| + 5 °C | | + 5 °C | ||
| + 60 °C | | + 60 °C | ||
| | | | ||
| rowspan="3" | Specially designed equipment or <br>appropriate arrangements | | rowspan="3" | Specially designed equipment or <br>appropriate arrangements | ||
|- | |- | ||
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|} | |} | ||
{| class="wikitable | {| class="wikitable" | ||
|- | |- | ||
| {{Table_HC2}} | '''AB''' | | {{Table_HC2}} | '''AB''' | ||
| {{Table_HC2}} colspan="7" | '''Atmospheric humidity''' | | {{Table_HC2}} colspan="7" | '''Atmospheric humidity''' | ||
|- | |- | ||
| | | | ||
| colspan="2" | '''Air temperature °C''' | | colspan="2" | '''Air temperature °C''' | ||
| colspan="2" | '''Relative humidity''' | | colspan="2" | '''Relative humidity''' | ||
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| | | | ||
|- | |- | ||
| | | | ||
| width="8%" | Low | | width="8%" | Low | ||
| width="8%" | High | | width="8%" | High | ||
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|} | |} | ||
{| class="wikitable | {| class="wikitable" | ||
|- | |- | ||
| {{Table_HC2}} | '''AC''' | | {{Table_HC2}} | '''AC''' | ||
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| AC1 | | AC1 | ||
| ≤ 2000 m | | ≤ 2000 m | ||
| | | | ||
| Normal | | Normal | ||
|- | |- | ||
| AC2 | | AC2 | ||
| > 2000 m | | > 2000 m | ||
| | | | ||
| May necessitate precaution (derating factors) | | May necessitate precaution (derating factors) | ||
|- | |- | ||
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|} | |} | ||
{| class="wikitable | {| class="wikitable" | ||
|- | |- | ||
| {{Table_HC2}} | '''AE''' | | {{Table_HC2}} | '''AE''' | ||
| {{Table_HC2}} colspan="4" | '''Presence of foreign solid bodies or dust''' | | {{Table_HC2}} colspan="4" | '''Presence of foreign solid bodies or dust''' | ||
|- | |- | ||
| | | | ||
| | | | ||
| Smallest dimension | | Smallest dimension | ||
| Example | | Example | ||
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| AE1 | | AE1 | ||
| Negligible | | Negligible | ||
| | | | ||
| | | | ||
| IP0X | | IP0X | ||
|- | |- | ||
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| AE4 | | AE4 | ||
| Light dust | | Light dust | ||
| | | | ||
| | | | ||
| rowspan="2" | IP5X if dust penetration is not harmful to functioning <br>IP6X if dust should not penetrate | | rowspan="2" | IP5X if dust penetration is not harmful to functioning <br>IP6X if dust should not penetrate | ||
|- | |- | ||
| AE5 | | AE5 | ||
| Moderate dust | | Moderate dust | ||
| | | | ||
| | | | ||
|- | |- | ||
| AE6 | | AE6 | ||
| Heavy dust | | Heavy dust | ||
| | | | ||
| | | | ||
| IP6X | | IP6X | ||
|} | |} | ||
{| class="wikitable | {| class="wikitable" | ||
|- | |- | ||
| {{Table_HC2}} | '''AF''' | | {{Table_HC2}} | '''AF''' | ||
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| AF1 | | AF1 | ||
| Negligible | | Negligible | ||
| | | | ||
| Normal | | Normal | ||
|- | |- | ||
| AF2 | | AF2 | ||
| Atmospheric | | Atmospheric | ||
| | | | ||
| According to the nature of the substance | | According to the nature of the substance | ||
|- | |- | ||
| AF3 | | AF3 | ||
| Intermittent, accidental | | Intermittent, accidental | ||
| | | | ||
| Protection against corrosion | | Protection against corrosion | ||
|- | |- | ||
| AF4 | | AF4 | ||
| Continuous | | Continuous | ||
| | | | ||
| Equipment specially designed | | Equipment specially designed | ||
|- | |- | ||
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| AG3 | | AG3 | ||
| High severity | | High severity | ||
| | | | ||
| Reinforced protection | | Reinforced protection | ||
|- | |- | ||
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|} | |} | ||
{| class="wikitable | {| class="wikitable" | ||
|- | |- | ||
| AM22 | | AM22 | ||
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'''''Fig. E60:''' List of external influences (taken from Appendix A of IEC 60364-5-51)'' | '''''Fig. E60:''' List of external influences (taken from Appendix A of IEC 60364-5-51)'' | ||
[[ru:Перечень внешних воздействий]] | [[ru:Перечень внешних воздействий]] | ||
[[zh:外部影响一览表]] | [[zh:外部影响一览表]] |
Revision as of 09:13, 22 November 2016
Figure E60 below is from IEC 60364-5-51, which should be referred to if further details are required.
Code | External influences | Characteristics required for equipment | ||
---|---|---|---|---|
A - Environment | ||||
AA | Ambient temperature (°C) | |||
Low | High | Specially designed equipment or appropriate arrangements | ||
AA1 | - 60 °C | + 5 °C | ||
AA2 | - 40 °C | + 5 °C | ||
AA3 | - 25 °C | + 5 °C | ||
AA4 | - 5° C | + 40 °C | Normal (special precautions in certain cases) | |
AA5 | + 5 °C | + 40 °C | Normal | |
AA6 | + 5 °C | + 60 °C | Specially designed equipment or appropriate arrangements | |
AA7 | - 25 °C | + 55 °C | ||
AA8 | - 50° C | + 40 °C |
AB | Atmospheric humidity | ||||||
Air temperature °C | Relative humidity | Absolute humidity g/m3 | |||||
Low | High | Low | High | Low | High | ||
AB1 | - 60 °C | + 5 °C | 3 | 100 | 0.003 | 7 | Appropriate arrangements shall be made |
AB2 | - 40 °C | + 5 °C | 10 | 100 | 0.1 | 7 | |
AB3 | - 25 °C | + 5 °C | 10 | 100 | 0.5 | 7 | |
AB4 | - 5° C | + 40 °C | 5 | 95 | 1 | 29 | Normal |
AB5 | + 5 °C | + 40 °C | 5 | 85 | 1 | 25 | Normal |
AB6 | + 5 °C | + 60 °C | 10 | 100 | 1 | 35 | Appropriate arrangements shall be made |
AB7 | - 25 °C | + 55 °C | 10 | 100 | 0.5 | 29 | |
AB8 | - 50 °C | + 40 | 15 | 100 | 0.04 | 36 |
AC | Altitude | ||
AC1 | ≤ 2000 m | Normal | |
AC2 | > 2000 m | May necessitate precaution (derating factors) | |
AD | Presence of water | ||
AD1 | Negligible | Probability of presence of water is negligible | IPX0 |
AD2 | Free falling drops | Probability of presence of water is negligible | IPX1 or IPX2 |
AD3 | Sprays | Possibility of water falling as a spray at an angle up to 60° from the vertical | IPX3 |
AD4 | Splashes | Possibility of splashes from any direction | IPX4 |
AD5 | Jets | Possibility of jets of water from any direction | IPX5 |
AD6 | Waves | Possibility of water waves (seashore locations) | IPX6 |
AD7 | Immersion | Possibility of intermittent partial or total covering by water | IPX7 |
AD8 | Submersion | Equipment is permanently and totally covered | IPX8 |
AE | Presence of foreign solid bodies or dust | |||
Smallest dimension | Example | |||
AE1 | Negligible | IP0X | ||
AE2 | Small objects | 2.5 mm | Tools | IP3X |
AE3 | Very small objects | 1 mm | Wire | IP4X |
AE4 | Light dust | IP5X if dust penetration is not harmful to functioning IP6X if dust should not penetrate | ||
AE5 | Moderate dust | |||
AE6 | Heavy dust | IP6X |
AF | Presence of corrosive or polluting substances | ||
AF1 | Negligible | Normal | |
AF2 | Atmospheric | According to the nature of the substance | |
AF3 | Intermittent, accidental | Protection against corrosion | |
AF4 | Continuous | Equipment specially designed | |
AG | Mechanical shock | ||
AG1 | Low severity | Normal, e.g. household and similar equipment | |
AG2 | Medium severity | Standard industrial equipment, where applicable, or reinforced protection | |
AG3 | High severity | Reinforced protection | |
AH | Vibrations | ||
AH1 | Low severity | Household or similar | Normal |
AH2 | Medium severity | Usual industrial conditions | Specially designed equipment or special arrangements |
AH3 | High severity | Severe industrial conditions | |
AK | Presence of flora and/or moulds growth | ||
AK1 | No hazard | Normal | |
AK2 | Hazard | Special protection | |
AL | Presence of fauna | ||
AL1 | No hazard | Normal | |
AL2 | Hazard | Special protection | |
AM | Electromagnetic, electrostatic or ionising influences / Low frequency electromagnetic phenomena / Harmonics | ||
AM1 | Harmonics, interharmonics | Refer to applicable IEC standards | |
AM2 | Signalling voltage | ||
AM3 | Voltage amplitude variations | ||
AM4 | Voltage unbalance | ||
AM5 | Power frequency variations | ||
AM6 | Induced low-frequency voltages | ||
AM7 | Direct current in a.c. networks | ||
AM8 | Radiated magnetic fields | ||
AM9 | Electric field | ||
AM21 | Induced oscillatory voltages or currents |
AM22 | Conducted unidirectional transients of the nanosecond time scale | Refer to applicable IEC standards |
AM23 | Conducted unidirectional transients of the microsecond to the millisecond time scale | |
AM24 | Conducted oscillatory transients | |
AM25 | Radiated high frequency phenomena | |
AM31 | Electrostatic discharges | |
AM41 | Ionisation | |
AN | Solar radiation | |
AN1 | Low | Normal |
AN2 | Medium | |
AN3 | High | |
AP | Seismic effect | |
AP1 | Negligible | Normal |
AP2 | Low severity | |
AP3 | Medium severity | |
AP4 | High severity | |
AQ | Lightning | |
AQ1 | Negligible | Normal |
AQ2 | Indirect exposure | |
AQ3 | Direct exposure | |
AR | Movement of air | |
AR1 | Low | Normal |
AR2 | Medium | |
AR3 | High | |
AS | Wind | |
AS1 | Low | Normal |
AS2 | Medium | |
AS3 | High | |
B - Utilization | ||
---|---|---|
BA | Capability of persons | |
BA1 | Ordinary | Normal |
BA2 | Children | |
BA3 | Handicapped | |
BA4 | Instructed | |
BA5 | Skilled | |
BB | Electrical resistance of human body (under consideration) | |
BC | Contact of persons with earth potential | |
BC1 | None | Class of equipment according to IEC61140 |
BC2 | Low | |
BC3 | Frequent | |
BC4 | Continuous | |
BD | Condition of evacuation in case of emergency | |
BD1 | Low density / easy exit | Normal |
BD2 | Low density / difficult exit | |
BD3 | High density / easy exit | |
BD4 | High density / difficult exit | |
BE | Nature of processed or stored materials | |
BE1 | No significant risks | Normal |
BE2 | Fire risks | |
BE3 | Explosion risks | |
BE4 | Contamination risks | |
C - Construction of building | ||
CA | Construction materials | |
CA1 | Non combustible | Normal |
CA2 | Combustible | |
CB | Building design | |
CB1 | Negligible risks | Normal |
CB2 | Propagation of fire | |
CB3 | Movement | |
CB4 | Flexible or unstable |
Fig. E60: List of external influences (taken from Appendix A of IEC 60364-5-51)